Hello world! Today i made an example on the KY_019 Relay module.
In my video i use a Alarm with strobe attached to it, but the strobe is not working because i use a 9volt battery,
and the alarm is 12v. Anyways... it works, and its very simple to build.
Follow the next step for the schematic code & Parts list.
Step 1: Schematic Code & Parts List.
- Arduino uno, I used a clone, the RobotDyn uno as i always do. Very good one with 7 analog pins.
- KY-019 1 Channel relay
- KY-004 Button Module. (You can use another button to of course!)
- Alarm strobe (aliexpress) + a power source 12v Adapter for example.
- Jumper wires. MM/FF/MF